There is no official demographics for LGBT population in India, but the government of India submitted figures to the Supreme Court in 2012. According to the figures, there were about 2.5 million gays recorded in India and these figures are only based on those individuals who have self declared to the Ministry of Health and there can be much higher statistics for individuals who have concealed their identity, since a major number of Homosexual Indians are living in Closet due to fear of discrimination.[2]

Religion has played a role in shaping Indian customs and traditions. While homosexuality has not been explicitly mentioned in the religious texts central to Hinduism, the largest religion in India, Hinduism has taken various positions, ranging from positive to neutral or antagonistic. Rigveda, one of the four canonical sacred texts of Hinduism says Vikriti Evam Prakriti (Sanskrit: विकृतिः एवम्‌ प्रकृतिः, meaning what seems unnatural is also natural),[14] which some scholars believe recognizes homosexual/transsexual dimensions of human life, like all forms of universal diversities.[15] Historical literary evidence indicates that homosexuality has been prevalent across the Indian subcontinent throughout history, and that homosexuals were not necessarily considered inferior in any way until about 18th century.[16]

In September 2006, Nobel Laureate Amartya Sen, acclaimed writer Vikram Seth and other prominent Indians publicly demanded the repeal of section 377 of the IPC.[18] The open letter demanded that "In the name of humanity and of our Constitution, this cruel and discriminatory law should be struck down." On 30 June 2008, Indian Labour MinisterOscar Fernandes backed calls for decriminalisation of consensual gay sex, and Prime Minister Manmohan Singh called for greater tolerance towards homosexuals.[19] On 23 July 2008, Bombay High Court Judge Bilal Nazki said that India's unnatural sex law should be reviewed.[20] The Law Commission of India had historically favoured the retention of this section in its 42nd and 156th report, but in its 172nd report, delivered in 2000, it recommended its repeal.[8][21]

On 9 August 2008, then health minister, Anbumani Ramadoss began his campaign for changing Section 377 of the Indian penal code, which makes homosexuality an unnatural act and thus illegal. At the International AIDS Conference in Mexico City, he said, "Section 377 of IPC, which criminalises men who have sex with men, must go."[22] His ministerial portfolio had put him at odds with the Indian Home MinisterShivraj Patil and other several other ministers in seeking to scrap Section 377.[23][24] In late 2008, he changed his argument saying he does not want the scrapping of Section 377 but a mere modification of the law treating homosexuality as a criminal offence punishable up to life imprisonment. He said he wants Prime Minister Manmohan Singh to resolve the matter, while he wanted to avoid discord with the home ministry, who said the altered law would then result in an increase in criminal incidences of sodomy or offences involving sexual abuse of children, particularly boys. In doing so he alleged that the law even penalises health workers who treat homosexuals, while making this a cognizable and non-bailable offence.[23]

Various Hindu organisations, based in India and abroad have supported decriminalisation of homosexual behaviours. In 2009, the Hindu Council UK became one of the first major religious organisations to support LGBT rights when they issued a statement "Hinduism does not condemn homosexuality".[25]Sri Sri Ravi Shankar, a prominent Hindu spiritual leader, has condemned sec 377 in a series of tweets, maintaining that "Hinduism has never considered homosexuality a crime" and "to brand a person a criminal based on sexual preference would be absurd."[26]

The United Nations has urged India to decriminalise homosexuality by saying it would help the fight against HIV/AIDS by allowing intervention programmes, much like the successful ones in China and Brazil. Jeffrey O'Malley, director of the United Nations Development Programme (UNDP) on HIV/AIDS, has stated countries which protect men who have sex with men (MSM) have double the rate of coverage of HIV prevention services as much as 60%.[27] According to him, inappropriate criminalisation hinders universal access to essential HIV, health and social services.[28] Later talking to The Hindu in November 2008, he added concerns that the then in power United Progressive Alliance government was in a difficult position in regarding to amending Section 377 of the Indian Penal Code because of the then upcoming elections, as such changes could be misrepresented. He further emphasized the need to change the laws, sensitise the police and judiciary. According to him, after removal of discriminatory laws, marginalised groups would have better access to treatment and prevention facilities like condoms. He warned of the urgency and stated that India had succeeded in checking the spread of AIDS through commercial sex workers but transmission through gay sex, and injectable-drug users was still an area of concern in the country.[29]

Bharatiya Janata Party senior leader Arun Jaitley stated in February 2014 that he supported decriminalisation of homosexuality. On 13 January 2015, BJP spokesperson Shaina NC, appearing on NDTV, stated, "We [BJP] are for decriminalising homosexuality. That is the progressive way forward."[30]

Rashtriya Swayamsevak Sangh spokesperson Ram Madhav in an interview with national daily Business Standard said in May 2014: "But I can say this — that while glorification of certain forms of social behaviour is not something we endorse, the penalising and criminalisation aspects need to be looked into. Whether to call homosexuality a crime and treat it as one in this day and age is questionable”[31] which is interpreted as Sangh's support to decriminalisation of homosexuality.

On 2 July 2009, in the case of Naz Foundation v National Capital Territory of Delhi, the High Court of Delhi struck down much of S. 377 of the IPC as being unconstitutional. The Court held that to the extent S. 377 criminalised consensual non-vaginal sexual acts between adults, it violated an individual's fundamental rights to equality before the law, freedom from discrimination and to life and personal liberty under Articles 14, 15 and 21 of the Constitution of India. The High Court did not strike down Section 377 completely. It held the section to be valid in case of non-consensual non-vaginal intercourse or to intercourse with minors, and it expressed the hope that Parliament would legislatively address the issue.[34]

On 11 December 2013, on responding an appeal filed by an astrologer Suresh Kumar Koushal and others,[35] the Supreme Court of India upheld the constitutionality of Section 377 of the IPC, and stated that the Court was instead deferring to Indian legislators to provide the sought-after clarity.[1] In its judgment the Supreme Court stated

"We declare that Section 377 IPC, insofar it criminalises consensual sexual acts of adults in private, is violative of Articles 21, 14 and 15 of the Constitution. The provisions of Section 377 IPC will continue to govern non-consensual penile non-vaginal sex and penile nonvaginal sex involving minors... Secondly, we clarify that our judgment will not result in the re-opening of criminal cases involving Section 377 IPC that have already attained finality."[36][37]

In January 2015, National Crime Records Bureau (NCRB) said that according to data collected, 778 cases were filed under Section 377 of IPC and 587 arrests were made in 2014 until October after the Supreme Court verdict. Some states are yet to submit their full data.[39]

The 11 December 2013 judgement of the Supreme Court, upholding Section 377, was met with support from religious leaders.[40] The main petitioner in the plea was an astrologer, Suresh Kumar Koushal, and other petitioners were religious organisations like All India Muslim Personal Law Board, Trust God Missionaries, Krantikari Manuwadi Morcha, Apostolic Churches Alliance, and Utkal Christian Council.[35][41] The Daily News and Analysis called it "the univocal unity of religious leaders in expressing their homophobic attitude. Usually divisive and almost always seen tearing down each other’s religious beliefs, leaders across sections came forward in decrying homosexuality and expressing their solidarity with the judgment." The article added that Baba Ramdev India's well-known yoga guru, after advising that journalists interviewing him not to turn homosexual, stated he could cure homosexuality through yoga and called it a bad addiction.[40]

The Vishwa Hindu Parishad's vice-president Om Prakash Singhal said, "This is a right decision, we welcome it. Homosexuality is against Indian culture, against nature and against science. We are regressing, going back to when we were almost like animals. The SC had protected our culture." Singhal further dismissed HIV/AIDS concerns within the LGBT community saying, "It is understood that when you try to suppress one anomaly, there will be a break-out of a few more."[40] This, however, is in stark disagreement with many Hindu teachings because Hinduism does not view homosexuality as a religious sin.[42]

Maulana Madni, of an Islamic organisation, Jamiat Ulema-e-Hind, has echoed similar homophobia in stating that "Homosexuality is a crime according to scriptures and is unnatural. People cannot consider themselves to be exclusive of a society... In a society, a family is made up of a man and a woman, not a woman and a woman, or a man and a man. If these same sex couples adopt children, the child will grow up with a skewed version of a family. Society will disintegrate. If we are to look at countries in the West who have allowed same-sex marriages, you will find the mental tensions they suffer from."

Masorti Rabbi Ezekiel Isaac Malekar, honorary secretary of the Judah Hyam Synagogue, in upholding the judgement, was also quoted as saying "In Judaism, our scriptures do not permit homosexuality." Reverend Paul Swarup of the Cathedral Church of the Redemption in Delhi in stating his views on what he believes to be the unnaturalness of homosexuality, stated "Spiritually, human sexual relations are identified as those shared by a man and a woman. The Supreme Court's view is an endorsement of our scriptures."[40]

In 2005, Prince Manvendra Singh Gohil, who hails from Rajpipla in the Gujarat, publicly came out as gay. He was quickly anointed by the Indian and the world media as the first openly gay royal. He was disinherited as an immediate reaction by the royal family, though they eventually reconciled. He appeared on the American talk show The Oprah Winfrey Show on October 24, 2007,[43] and on BBC Three's Undercover Princes.[44] In 2008, Zoltan Parag, a competitor at the Mr. Gay International contest said that he was apprehensive about returning to India. He said, "Indian media has exposed me so much that now when I call my friends back home, their parents do not let them talk to me".[45]

On 29 June 2008, five Indian cities (Delhi, Bangalore, Kolkata, Indore and Pondicherry) celebrated gay pride parades. About 2,000 people turned out in these nationwide parades. Mumbai held its pride march on 16 August 2008, with Bollywood actress Celina Jaitley flagged off the festivities.[46] On 4 July 2008, the Delhi High Court, while hearing the case to decriminalise homosexuality, opined that there was nothing unusual in holding a gay rally, something which is common outside India.[47]

Days after the 2 July 2009 Delhi High Court verdict legalizing homosexuality, Pink Pages, India's first online LGBT magazine was released.[48] On 16 April 2009, India's first gay magazine Bombay Dost originally launched in 1990,[48] was re-launched by Celina Jaitley in Mumbai.[49]

On 27 June 2009, Bhubaneswar, the capital city of Odisha, saw its first gay pride parade.[50] A day later, Union Law Minister Veerappa Moily announced that the Union Home Minister has convened a meeting with the Union Law Ministers, Union Health Ministers and Home Ministers of all states to evolve a consensus on decriminalising homosexuality in India.[51] On 28 June 2009, Delhi and Bangalore held their second gay pride parades, and Chennai, generally considered to be a very conservative city, held its first.[52][53]

Mumbai has one of its own pride events, like Kashish Mumbai Queer Film Festival which was first held in 2010 from 22 to 25 April[54] and in the next year 2011 from 25 to 29 May.[55] It was the first queer film festival in India and is held in a mainstream multiplex theater which screens LGBT films from all over the world.[55][56] It has been recognized by Interpride as a pride event in India.[57]

Madurai celebrated city's first LGBTQ Rainbow festival on 29 July 2012, Anjali Gopalan inaugurated Alan Turing Rainbow festival and flagged off the Asia's first Gender queer pride parade as a part of Turing Rainbow festival organised by Srishti Madurai, a literary and resource circle for alternative gender and sexualities. It was established by Gopi Shankar a student of The American College in Madurai to eradicate social discrimination faced by the LGBT and Genderqueer community. The objective of the organisation in to highlight 20 different types of Genders.[58]

The 11th Kolkata Rainbow Pride festival, held on 15 July 2012, was attended by more than 1500 people. It was started in 1999 which was attended by only 15 people.[59]

Chandigarh held its first LGBT pride parade on 15 March 2013 and it has been held annually ever since.[60]

The first LGBT pride parade in Gujarat state was held at Surat on 6 October 2013.[61]

Rajasthan witnessed its first pride event on 1 March 2015, when a pride walk was held in Jaipur.[62]

In 2013, India was represented by Nolan Lewis, a model, at the Mr Gay World2013 contest. He had trouble finding sponsors. Previously, India had been represented at the Mr Gay World by Zoltan Parag Bhaindarkar in 2008. He did not return to India and reportedly sought asylum in the United States.[63]

Sushant Divgikar, the winner of Mr Gay India 2014, was a contestant on the Bigg Boss reality show.[64] On 26 July 2014, at Kochi the 5th All-Kerala Queer Pride Parade was held.[65] It was organised by Queerala (a support group for the LGBT community) and Sahayathrika (a rights organisation for lesbian and bisexual women in Kerala).[66]